| CC: | mcwehner [...] gmail.com |
| Subject: | _DUMP method will produce corrupt output with newlines in attribute values. |
When using the _DUMP method of an object built using Class::Std, if any of the attribute
values for the object contains newlines, the output of _DUMP will be corrupt.
I've traced this to the very end of the _DUMP method, which compiles a hash, feeds it to
Data::Dumper::Dumper, removes the typical `$VAR = ' prefix, and returns the final string
value:
require Data::Dumper;
my $dump = Data::Dumper::Dumper(\%dump);
$dump =~ s/^.{8}//gxms;
return $dump;
The use of `gxms' removes Data::Dumper::Dumper's usual prefixing of `$VAR = ' from the
string, but will also remove 8-character segments of the output string (contained in $dump)
where an attribute value contains newlines.
One simple test for this is to create a class using Class::Std, assign a string value containing
a newline, and then eval the _DUMP'd output. This will fail.
Since it seems like the only purpose of the substitution on the _DUMP'd value is to remove
Data::Dumper's prefixing of `$VAR = ', the options `gxms' are probably unnecessary.